FIELD: machine building.
SUBSTANCE: radial compressor (10) with guide vane (1), made in the form of input guide vane (1), in particular, for compressor (10), with at least one blade (4) having fluid (2) flowed around feather (3) of blade, with adjusting device (12) for adjusting blade (4), characterized in that deflection (5) of middle line (6) of the profile of feather (3) of blade has inflection point (7), and feather (3) of the blade is designed the way chord length (8) of the blade feather profile changes along its length (9), blade (3) of the blade is designed the way thickness (11) of the profile varies with the changing chord length (8) of the profile of feather (3) of the blade along length (9) of feather (3) of the blade, which also changes thickness (11) of the profile.
EFFECT: reduction of hydraulic losses is achieved in the extended control range of the guide vane, keeping low hydraulic losses in the zero vanes of the vane guide vane.
4 cl, 3 dwg
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